Home / 3,617.42-4,991.45-2,105.32

Finding the Fourth Proportional to 3,617.42, 4,991.45 and 2,105.32

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Solution

The fourth proportional to 3,617.42, 4,991.45 and 2,105.32 is: 2,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.42 : 4,991.45 = 2,105.32 : x
  2. Step 2: Convert to fraction form
    3,617.42/4,991.45 = 2,105.32/x
  3. Step 3: Cross multiply
    3,617.42x = 4,991.45 × 2,105.32
  4. Step 4: Simplify right side
    3,617.42x = 10,508,576.51
  5. Step 5: Solve for x
    x = 10,508,576.51/3,617.42
  6. Step 6: Final answer
    x = 2,905.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.